Birmingham: China's world champions Chen Qingchen and Jia Yifan were ousted from the first round of the women's doubles event at the All England Badminton Open on Wednesday.
Chen and Jia had played a marathon final just three days ago as they clinched the title at the German Open by edging Bulgarian sisters Gabriela and Stefani Stoeva after more than 100 minutes of play.
The Chinese top seeds were obviously not in form physically and they were beaten by world No. 64 pairing of Jeong Naeun and Kim Hyejeong of South Korea in 21-15, 21-16.
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